OPENSUSE-SU-2021:3187-1: samba&distro=openSUSE Leap 15.3 openSUSE
Published
Published 22-09-2021Last modified 07-05-2025
Vulnerability summary
OPENSUSE-SU-2021:3187-1 is a vulnerability in samba&distro=openSUSE Leap 15.3 openSUSE with no CVSS score yet.
Priority
Insufficient evidence
No CVSS vector published; no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?CVSS score
Not scored
010
No CVSS score recordedEPSS scoreNot scoredRisk metrics not yet published.
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded
Advisory lineage
Upstream 3 · Downstream 0 · Related 3Timeline
- 22-09-2021PublishedVulnerability first disclosed.
- 07-05-2025Last modifiedVulnerability information updated.
Description
Security update for samba This update for samba fixes the following issues: - CVE-2021-20277: Fixed an out of bounds read in ldb_handler_fold (bsc#1183574). - CVE-2021-20254: Fixed a buffer overrun in sids_to_unixids() (bsc#1184677). - CVE-2020-27840: Fixed an unauthenticated remote heap corruption via bad DNs (bsc#1183572). - Spec file fixes around systemd and requires (bsc#1182830) - Fix dependency problem upgrading from libndr0 to libndr1 (bsc#1189875) - Fix dependency problem upgrading from libsmbldap0 to libsmbldap2 (bsc#1189875)
CVSS metrics
Risk metrics not yet published.
EPSS trend
No EPSS score has been published for this record yet.
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Version check
Known conditions: not stated in public data.
Opensuse1 product
- samba&distro=openSUSE Leap 15.3< 4.13.6+git.211.555d60b24ba-3.7.1
1 vendor · 1 product
References
9 links- lists.opensuse.org/archives/…Advisory
Related vulnerabilities
Insufficient evidenceSUSE-SU-2022:4395-1opensuse · samba&distro=openSUSE Leap 15.3 +6 moreopensuse samba&distro=openSUSE Leap 15.3Security update for samba
This update for samba fixes the following issues:
Version update to 4.15.12.
Security issues fixed:
- CVE-2022-2031: Fixed AD users that could have bypassed certain restrictions associated with changing passwords (bsc#1201495).
- CVE-2022-32742: Fixed SMB1 code that does not correctly verify SMB1write, SMB1write_and_close, SMB1write_and_unlock lengths (bsc#1201496).
- CVE-2022-32744: Fixed AD users that could have forged password change requests for any user (bsc#1201493).
- CVE-2022-32745: Fixed AD users that could have crashed the server process with an LDAP add or modify request (bsc#1201492).
- CVE-2022-32746: Fixed a use-after-free occurring in database audit logging (bsc#1201490).
- CVE-2022-3437: Fixed buffer overflow in Heimdal unwrap_des3() (bsc#1204254).
- CVE-2022-42898: Fixed Samba buffer overflow vulnerabilities on 32-bit systems (bsc#1205126).
Bug fixes:
- Install a systemd drop-in file for named service to allow read/write access to the DLZ directory (bsc#1201689).
- Possible use after free of connection_struct when iterating smbd_server_connection->connections (bsc#1200102).CVSSUnscoredInsufficient evidenceSUSE-SU-2022:3955-1opensuse · samba&distro=openSUSE Leap 15.3 +6 moreopensuse samba&distro=openSUSE Leap 15.3Security update for samba
This update for samba fixes the following issues:
- CVE-2022-1615: Fixed error handling in random number generation (bso#15103)(bsc#1202976).
- CVE-2022-32743: Implement validated dnsHostName write rights (bso#14833)(bsc#1202803).
Bugfixes:
- Fixed use after free when iterating smbd_server_connection->connections after tree disconnect failure (bso#15128)(bsc#1200102).CVSSUnscoredInsufficient evidenceSUSE-SU-2022:2586-1opensuse · ldb&distro=openSUSE Leap 15.3 +10 moreopensuse ldb&distro=openSUSE Leap 15.3Security update for ldb, samba
This update for ldb, samba fixes the following issues:
- CVE-2022-32746: Fixed a use-after-free occurring in database audit logging (bsc#1201490).
- CVE-2022-32745: Fixed a remote server crash with an LDAP add or modify request (bsc#1201492).
- CVE-2022-2031: Fixed AD restrictions bypass associated with changing passwords (bsc#1201495).
- CVE-2022-32742: Fixed a memory leak in SMB1 (bsc#1201496).
- CVE-2022-32744: Fixed an arbitrary password change request for any AD user (bsc#1201493).
The following security bugs were fixed:
samba was updated to 4.15.8:
* Use pathref fd instead of io fd in vfs_default_durable_cookie;
(bso#15042);
* Setting fruit:resource = stream in vfs_fruit causes a panic;
(bso#15099);
* Add support for bind 9.18; (bso#14986);
* logging dsdb audit to specific files does not work; (bso#15076);
* vfs_gpfs with vfs_shadowcopy2 fail to restore file if original
file had been deleted; (bso#15069);
* netgroups support removed; (bso#15087); (bsc#1199247);
* net ads info shows LDAP Server: 0.0.0.0 depending on contacted
server; (bso#14674); (bsc#1199734);
* waf produces incorrect names for python extensions with Python
3.11; (bso#15071);
* smbclient commands del & deltree fail with
NT_STATUS_OBJECT_PATH_NOT_FOUND with DFS; (bso#15100);
(bsc#1200556);
* vfs_gpfs recalls=no option prevents listing files; (bso#15055);
* waf produces incorrect names for python extensions with Python
3.11; (bso#15071);
* Compile error in source3/utils/regedit_hexedit.c; (bso#15091);
* ldconfig: /lib64/libsmbconf.so.0 is not a symbolic link;
(bso#15108);
* smbd doesn't handle UPNs for looking up names; (bso#15054);
* Out-by-4 error in smbd read reply max_send clamp; (bso#14443);
- Move pdb backends from package samba-libs to package
samba-client-libs and remove samba-libs requirement from
samba-winbind; (bsc#1200964); (bsc#1198255);
- Use the canonical realm name to refresh the Kerberos tickets;
(bsc#1196224); (bso#14979);
- Fix smbclient commands del & deltree failing with
NT_STATUS_OBJECT_PATH_NOT_FOUND with DFS; (bso#15100);
(bsc#1200556).
ldb was updated to version 2.4.3
* Fix build problems, waf produces incorrect names for python extensions; (bso#15071);CVSSUnscoredRoutineCVE-2020-25717canonical · ubuntu_linux +73 morecanonical ubuntu_linuxA flaw was found in the way Samba maps domain users to local users. An authenticated attacker could use this flaw to cause possible privilege escalation.CVSS8.5HighEPSS1.63%Insufficient evidenceOPENSUSE-SU-2022:0283-1opensuse · apparmor&distro=openSUSE Leap 15.3 +11 moreopensuse apparmor&distro=openSUSE Leap 15.3Security update for samba
- CVE-2021-44141: Information leak via symlinks of existance of
files or directories outside of the exported share; (bso#14911);
(bsc#1193690);
- CVE-2021-44142: Out-of-bounds heap read/write vulnerability
in VFS module vfs_fruit allows code execution; (bso#14914);
(bsc#1194859);
- CVE-2022-0336: Samba AD users with permission to write to an
account can impersonate arbitrary services; (bso#14950);
(bsc#1195048);
samba was updated to 4.15.4 (jsc#SLE-23329);
* Duplicate SMB file_ids leading to Windows client cache
poisoning; (bso#14928);
* Failed to parse NTLMv2_RESPONSE length 95 - Buffer Size Error -
NT_STATUS_BUFFER_TOO_SMALL; (bso#14932);
* kill_tcp_connections does not work; (bso#14934);
* Can't connect to Windows shares not requiring authentication
using KDE/Gnome; (bso#14935);
* smbclient -L doesn't set 'client max protocol' to NT1 before
calling the 'Reconnecting with SMB1 for workgroup listing'
path; (bso#14939);
* Cross device copy of the crossrename module always fails;
(bso#14940);
* symlinkat function from VFS cap module always fails with an
error; (bso#14941);
* Fix possible fsp pointer deference; (bso#14942);
* Missing pop_sec_ctx() in error path inside close_directory();
(bso#14944);
* 'smbd --build-options' no longer works without an smb.conf file;
(bso#14945);
Samba was updated to version 4.15.3
+ CVE-2021-43566: Symlink race error can allow directory creation
outside of the exported share; (bsc#1139519);
+ CVE-2021-20316: Symlink race error can allow metadata read and
modify outside of the exported share; (bsc#1191227);
- Reorganize libs packages. Split samba-libs into samba-client-libs,
samba-libs, samba-winbind-libs and samba-ad-dc-libs, merging samba
public libraries depending on internal samba libraries into these
packages as there were dependency problems everytime one of these
public libraries changed its version (bsc#1192684). The devel
packages are merged into samba-devel.
- Rename package samba-core-devel to samba-devel
- Update the symlink create by samba-dsdb-modules to private samba
ldb modules following libldb2 changes from /usr/lib64/ldb/samba to
/usr/lib64/ldb2/modules/ldb/samba
krb5 was updated to 1.16.3 to 1.19.2
* Fix a denial of service attack against the KDC encrypted challenge code; (CVE-2021-36222);
* Fix a memory leak when gss_inquire_cred() is called without a credential handle.
Changes from 1.19.1:
* Fix a linking issue with Samba.
* Better support multiple pkinit_identities values by checking whether
certificates can be loaded for each value.
Changes from 1.19
Administrator experience
* When a client keytab is present, the GSSAPI krb5 mech will refresh
credentials even if the current credentials were acquired manually.
* It is now harder to accidentally delete the K/M entry from a KDB.
Developer experience
* gss_acquire_cred_from() now supports the 'password' and 'verify'
options, allowing credentials to be acquired via password and
verified using a keytab key.
* When an application accepts a GSS security context, the new
GSS_C_CHANNEL_BOUND_FLAG will be set if the initiator and acceptor
both provided matching channel bindings.
* Added the GSS_KRB5_NT_X509_CERT name type, allowing S4U2Self requests
to identify the desired client principal by certificate.
* PKINIT certauth modules can now cause the hw-authent flag to be set
in issued tickets.
* The krb5_init_creds_step() API will now issue the same password
expiration warnings as krb5_get_init_creds_password().
Protocol evolution
* Added client and KDC support for Microsoft's Resource-Based Constrained
Delegation, which allows cross-realm S4U2Proxy requests. A third-party
database module is required for KDC support.
* kadmin/admin is now the preferred server principal name for kadmin
connections, and the host-based form is no longer created by default.
The client will still try the host-based form as a fallback.
* Added client and server support for Microsoft's KERB_AP_OPTIONS_CBT
extension, which causes channel bindings to be required for the
initiator if the acceptor provided them. The client will send this
option if the client_aware_gss_bindings profile option is set.
User experience
* kinit will now issue a warning if the des3-cbc-sha1 encryption type is
used in the reply. This encryption type will be deprecated and removed
in future releases.
* Added kvno flags --out-cache, --no-store, and --cached-only
(inspired by Heimdal's kgetcred).
Changes from 1.18.3
* Fix a denial of service vulnerability when decoding Kerberos
protocol messages.
* Fix a locking issue with the LMDB KDB module which could cause
KDC and kadmind processes to lose access to the database.
* Fix an assertion failure when libgssapi_krb5 is repeatedly loaded
and unloaded while libkrb5support remains loaded.
Changes from 1.18.2
* Fix a SPNEGO regression where an acceptor using the default credential
would improperly filter mechanisms, causing a negotiation failure.
* Fix a bug where the KDC would fail to issue tickets if the local krbtgt
principal's first key has a single-DES enctype.
* Add stub functions to allow old versions of OpenSSL libcrypto to link
against libkrb5.
* Fix a NegoEx bug where the client name and delegated credential might
not be reported.
Changes from 1.18.1
* Fix a crash when qualifying short hostnames when the system has
no primary DNS domain.
* Fix a regression when an application imports 'service@' as a GSS
host-based name for its acceptor credential handle.
* Fix KDC enforcement of auth indicators when they are modified by
the KDB module.
* Fix removal of require_auth string attributes when the LDAP KDB
module is used.
* Fix a compile error when building with musl libc on Linux.
* Fix a compile error when building with gcc 4.x.
* Change the KDC constrained delegation precedence order for consistency
with Windows KDCs.
Changes from 1.18
Administrator experience:
* Remove support for single-DES encryption types.
* Change the replay cache format to be more efficient and robust.
Replay cache filenames using the new format end with '.rcache2'
by default.
* setuid programs will automatically ignore environment variables
that normally affect krb5 API functions, even if the caller does
not use krb5_init_secure_context().
* Add an 'enforce_ok_as_delegate' krb5.conf relation to disable
credential forwarding during GSSAPI authentication unless the KDC
sets the ok-as-delegate bit in the service ticket.
* Use the permitted_enctypes krb5.conf setting as the default value
for default_tkt_enctypes and default_tgs_enctypes.
Developer experience:
* Implement krb5_cc_remove_cred() for all credential cache types.
* Add the krb5_pac_get_client_info() API to get the client account
name from a PAC.
Protocol evolution:
* Add KDC support for S4U2Self requests where the user is identified
by X.509 certificate. (Requires support for certificate lookup from
a third-party KDB module.)
* Remove support for an old ('draft 9') variant of PKINIT.
* Add support for Microsoft NegoEx. (Requires one or more third-party
GSS modules implementing NegoEx mechanisms.)
User experience:
* Add support for 'dns_canonicalize_hostname=fallback', causing
host-based principal names to be tried first without DNS
canonicalization, and again with DNS canonicalization if the
un-canonicalized server is not found.
* Expand single-component hostnames in host-based principal names
when DNS canonicalization is not used, adding the system's first DNS
search path as a suffix. Add a 'qualify_shortname' krb5.conf relation
to override this suffix or disable expansion.
* Honor the transited-policy-checked ticket flag on application servers,
eliminating the requirement to configure capaths on servers in some
scenarios.
Code quality:
* The libkrb5 serialization code (used to export and import krb5 GSS
security contexts) has been simplified and made type-safe.
* The libkrb5 code for creating KRB-PRIV, KRB-SAFE, and KRB-CRED
messages has been revised to conform to current coding practices.
* The test suite has been modified to work with macOS System Integrity
Protection enabled.
* The test suite incorporates soft-pkcs11 so that PKINIT PKCS11 support
can always be tested.
Changes from 1.17.1
* Fix a bug preventing 'addprinc -randkey -kvno' from working in kadmin.
* Fix a bug preventing time skew correction from working when a KCM
credential cache is used.
Changes from 1.17:
Administrator experience:
* A new Kerberos database module using the Lightning Memory-Mapped
Database library (LMDB) has been added. The LMDB KDB module should
be more performant and more robust than the DB2 module, and may
become the default module for new databases in a future release.
* 'kdb5_util dump' will no longer dump policy entries when specific
principal names are requested.
Developer experience:
* The new krb5_get_etype_info() API can be used to retrieve enctype,
salt, and string-to-key parameters from the KDC for a client
principal.
* The new GSS_KRB5_NT_ENTERPRISE_NAME name type allows enterprise
principal names to be used with GSS-API functions.
* KDC and kadmind modules which call com_err() will now write to the
log file in a format more consistent with other log messages.
* Programs which use large numbers of memory credential caches should
perform better.
Protocol evolution:
* The SPAKE pre-authentication mechanism is now supported. This
mechanism protects against password dictionary attacks without
requiring any additional infrastructure such as certificates. SPAKE
is enabled by default on clients, but must be manually enabled on
the KDC for this release.
* PKINIT freshness tokens are now supported. Freshness tokens can
protect against scenarios where an attacker uses temporary access to
a smart card to generate authentication requests for the future.
* Password change operations now prefer TCP over UDP, to avoid
spurious error messages about replays when a response packet is
dropped.
* The KDC now supports cross-realm S4U2Self requests when used with a
third-party KDB module such as Samba's. The client code for
cross-realm S4U2Self requests is also now more robust.
User experience:
* The new ktutil addent -f flag can be used to fetch salt information
from the KDC for password-based keys.
* The new kdestroy -p option can be used to destroy a credential cache
within a collection by client principal name.
* The Kerberos man page has been restored, and documents the
environment variables that affect programs using the Kerberos
library.
Code quality:
* Python test scripts now use Python 3.
* Python test scripts now display markers in verbose output, making it
easier to find where a failure occurred within the scripts.
* The Windows build system has been simplified and updated to work
with more recent versions of Visual Studio. A large volume of
unused Windows-specific code has been removed. Visual Studio 2013
or later is now required.
- Build with full Cyrus SASL support. Negotiating SASL credentials with
an EXTERNAL bind mechanism requires interaction. Kerberos provides its
own interaction function that skips all interaction, thus preventing the
mechanism from working.
ldb was updated to version 2.4.1 (jsc#SLE-23329);
- Release 2.4.1
+ Corrected python behaviour for 'in' for LDAP attributes
contained as part of ldb.Message; (bso#14845);
+ Fix memory handling in ldb.msg_diff; (bso#14836);
- Release 2.4.0
+ pyldb: Fix Message.items() for a message containing elements
+ pyldb: Add test for Message.items()
+ tests: Use ldbsearch '--scope instead of '-s'
+ Change page size of guidindexpackv1.ldb
+ Use a 1MiB lmdb so the test also passes on aarch64 CentOS stream
+ attrib_handler casefold: simplify space dropping
+ fix ldb_comparison_fold off-by-one overrun
+ CVE-2020-27840: pytests: move Dn.validate test to ldb
+ CVE-2020-27840 ldb_dn: avoid head corruption in ldb_dn_explode
+ CVE-2021-20277 ldb/attrib_handlers casefold: stay in bounds
+ CVE-2021-20277 ldb tests: ldb_match tests with extra spaces
+ improve comments for ldb_module_connect_backend()
+ test/ldb_tdb: correct introductory comments
+ ldb.h: remove undefined async_ctx function signatures
+ correct comments in attrib_handers val_to_int64
+ dn tests use cmocka print functions
+ ldb_match: remove redundant check
+ add tests for ldb_wildcard_compare
+ ldb_match: trailing chunk must match end of string
+ pyldb: catch potential overflow error in py_timestring
+ ldb: remove some 'if PY3's in tests
talloc was updated to 2.3.3:
+ various bugfixes
+ python: Ensure reference counts are properly incremented
+ Change pytalloc source to LGPL
+ Upgrade waf to 2.0.18 to fix a cross-compilation issue;
(bso#13846).
tdb was updated to version 1.4.4:
+ various bugfixes
tevent was updated to version 0.11.0:
+ Add custom tag to events
+ Add event trace api
sssd was updated to:
- Fix tests test_copy_ccache & test_copy_keytab for later versions of krb5
- Update the private ldb modules installation following libldb2
changes from /usr/lib64/ldb/samba to /usr/lib64/ldb2/modules/ldb/samba
apparmor was updated to:
- Cater for changes to ldb packaging to allow parallel installation with libldb (bsc#1192684).
- add profile for samba-bgqd (bsc#1191532).CVSSUnscoredInsufficient evidenceOPENSUSE-SU-2021:3674-1opensuse · samba&distro=openSUSE Leap 15.3opensuse samba&distro=openSUSE Leap 15.3Security update for samba
This update for samba fixes the following issues:
- CVE-2016-2124: Fixed not to fallback to non spnego authentication if we require kerberos (bsc#1014440).
- CVE-2020-25717: Fixed privilege escalation inside an AD Domain where a user could become root on domain members (bsc#1192284).CVSSUnscored